Websocket's listeners are ingored?

Yep, I had a modified copy of old handshake() code with hard-coded Sec-WebSocket-Key instead of new this.key.source. The result was, that no open event was emitted. After I poured the new crypto-aware code in, the problem disappeared.

I created a pull-request. Please see https://github.com/espruino/EspruinoDocs/pull/289. It shouldn't have any impact on space requirement for the library.